Pith Number

pith:A5L26D33

pith:2019:A5L26D33JUAQ4CYCBFY43BF24E

not attested not anchored not stored refs pending

Finite difference scheme for two-dimensional periodic nonlinear Schr\"odinger equations

Changhun Yang, Chulkwang Kwak, Shohei Nakamura, Younghun Hong

arxiv:1904.09640 v1 · 2019-04-21 · math.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A5L26D33JUAQ4CYCBFY43BF24E}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:48:03.748429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0757af0f7b4d010e0b020971cd84bae13a1cb60c1d84028a7573f18897323b0e

Aliases

arxiv: 1904.09640 · arxiv_version: 1904.09640v1 · doi: 10.48550/arxiv.1904.09640 · pith_short_12: A5L26D33JUAQ · pith_short_16: A5L26D33JUAQ4CYC · pith_short_8: A5L26D33

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/A5L26D33JUAQ4CYCBFY43BF24E \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 0757af0f7b4d010e0b020971cd84bae13a1cb60c1d84028a7573f18897323b0e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2472486d08dbb735e0619f9f572ffbb22cb3900b8d5a036dc3d8459f1c0a2ea3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-04-21T18:31:37Z",
    "title_canon_sha256": "4152c75a9b452d7becfcf6fa9f6d7261108b3d8b5083587d796362c397f78956"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.09640",
    "kind": "arxiv",
    "version": 1
  }
}